Military

* FM 5-170

FIELD MANUAL
5-170
Headquarters
Department of the Army
Washington, DC, 5 May 1998

FM 5-170

ENGINEER RECONNAISSANCE

Editor's Note: Change 1, 13 July 1998 is available in Adobe Portable Document Format (PDF) only. It can be accessed at the "Download Document" button above. Changes 1 has NOT been posted to this May 1998 web version.

Table of Contents


PREFACE

Chapter 1. Introduction

Organization

Missions

Characteristics,Capabilities, and Limitations

General Organizational Characteristics

Engineer Recon Team Capabilities

Engineer Recon Team Limitations

Platform-Specific Capabilities

Command and Support Relationships

Attached

Operational Control (OPCON)

Direct Support (DS) and General Support (GS)

Chapter 2. Intelligence Preparation of the Battlefield and Reconnaissance and Surveillance Planning

Intelligence Preparation of the Battlefield (IPB)

R & S Planning

Chapter 3. Tactical Reconnaissance

Purpose and Fundamentals

Recon Techniques

Mounted Recon

Dismounted Recon

Recon by Fire

Indirect Fire

Direct Fire

Aerial Recon

Stealth Versus Aggressive Recon

Route Recon

Critical Tasks

Techniques

Example of a Route Recon

Zone Recon

Critical Tasks

Techniques

Example of a Zone Recon

Area Recon

Critical Tasks

Techniques

Example of an Area Recon

Chapter 4. Engineer Recon Team and Obstacle Reconnaissance

Personnel and Equipment

Training

Equipment

Vehicles

Communications Equipment

Weapon Systems

Additional Equipment

Engineer Recon Team

Dismounted Element

Mounted Element

Obstacle and Restriction Recon

Detection

Area Security and Recon

Obstacle Recon

COA Selection

COA Recommendation/Execution

Examples of Obstacles/Restrictions

Employment Concepts

Integrated as Part of the Brigade Intelligence-Collection Effort

Assigned Brigade NAIs in a TF's AO

Working Under a TF's Control

Support Considerations

Responsibilities

Chapter 5. Route Classification

Route-Classification Overlay

Route-Classification Formula

Route Width

Route Type

MLC

Overhead Clearance

Route Obstructions

Snow Blockage and Flooding

Examples of the Route-Classification Formula

Curve Calculations

Measuring Methods

Tape-Measure Method

Triangulation Method

Formula Method

Curve Symbol

Series of Sharp Curves

Slope Estimation

Percent of Slope

Clinometer Method

Map Method

Pace Method

Angle-of-Slope Method

Slope Symbol

Description of Slope Symbols

Constrictions

Underpasses

Tunnels

Tunnel Symbol

Overhead Clearance

Tunnel Reconnaissance Report

Stream Recon

Measurements

Preexisting Data

Stream Width

Compass Method

Aiming Circle, Azimuth Indicator, or Alidade

GPS

Direct Measurement

Current Velocities

Stream Approaches

Fords

Underwater Recon

Ferry Recon

Civil Ferries and Ferry Sites

Ferry Information

Military Ferry and Rafting

Road Recon Procedure

Base Course and Subgrade

Road-Capacity Computations

Road-Classification Formula

Examples of the Road-Classification Formula

Bridge-Classification Recon

Required Bridge Information for Classification Procedures

Required Information

Bridge Condition

Width and Height Restrictions

Bridge Traffic-Control Procedure

Full North Atlantic Treaty Organization (NATO) Bridge Symbol

The Bridge Reconnaissance Report

Other Information

Bridge Sketches

Bypasses

Chapter 6. Combat Support

Indirect-Fire Support

Mortar Support

Capabilities

Limitations

Available Munitions

Field Artillery

Capabilities

Limitations

Available Munitions

Fire-Support Team

Fire-Request Channels

Engineer Recon Team Working Under Brigade Control

Engineer Recon Team Working in a TF's Area or Under TF Control

Engineer Recon Team Working with a Cavalry Squadron or Under Troop Control

Air Defense

Passive Air Defense

Attack Avoidance

Damage-Limiting Measures

Active Air Defense

Air Support

Ground Surveillance Radar

Capabilities and Limitations

Employment

Chemical

Capabilities and Limitations

Employment

Chapter 7. Combat Service Support

Organization

Supply Operations

Basic Load

Classes of Supply

Class I

Class II

Class III and Class V

Class IV

Class VI

Class VII

Class VIII

Class IX

Techniques of Resupply

Maintenance Operations

Responsibilities

Team Leader

Assistant Team Leader

Unit Maintenance (Operator Level)

Evacuation

Destruction

Medical Treatment and Evacuation

Wounded Soldiers

Soldiers Killed in Action

Prisoners

Prisoners of War

Captured Enemy Documents and Equipment

Civilians

Appendix A. Metric Conversion Chart

Appendix B. Bridge Classification

Bridge Signs

Width and Height Restrictions

Classification Procedures

Appendix C Sample Reconnaissance OPORD

Appendix D. Engineer Recon

Appendix E. Signs

Military Route Signs

Hazard Signs

Regulatory Signs

Light Line

Bridge/Raft Signs

Rectangular Bridge Signs

Guide Signs

Directional Disks

Headquarters and Logistical Signs

Casualty Evacuation Route Signs

Unit Direction Arrow

Military Detour Signs

Road Markers in Areas of Heavy Snow

Vehicle Signs

Sign Lighting

Appendix F. Military Load Classifications

Requirement for Classification Numbers

Procedures for Vehicle Classification

Temporary Procedure for Vehicle Classification

Expedient Procedure for Wheeled-Vehicle Classification

Expedient Procedure for Tracked-Vehicle Classification

Appendix G. Symbols

Glossary

References

DA FORM 1711-R

Authorization


DISTRIBUTION RESTRICTION: Approved for public release; distribution is unlimited.

*This manual supersedes FM 5-30, 22 September 1967, and FM 5-36, 10 May 1985.



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